|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
LARGE DOLOMITE SPECIMEN
SIZE 70 x 57 x 33 MM
The Dolomite Group is composed of minerals with an unusual Crystal Trigonal bar 3 symmetry.
Pink Dolomite is found in USA, Spain n Mexico.
The general formula of this group is AB(CO3)2, where A can be either calcium, barium and/or strontium and the B can be either iron, magnesium, zinc and/or manganese.
The structure of the Dolomite Group is taken from the Calcite Group structure. The Calcite Group structure is layered with alternating carbonate layers and metal ion layers. The structure of the Dolomite Group minerals is layered in such a way that the A metal ions occupy one layer which is followed by a carbonate layer which is followed by the B metal ion layer followed by another carbonate (CO3) layer, etc.
Exquisitely beautiful- smaller than I expected and such a delight. It was quite tarnished on arrival but has cleaned up beautifully. ThankyouBALTIC AMBER RECTANGULAR PENDANT 26.9 TCW MYG 483
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